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Finding the Third Proportional to 378.75 and 926.06

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Solution

The third proportional to 378.75 and 926.06 is: 2,264.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    378.75 : 926.06 = 926.06 : x
  2. Step 2: Convert to fraction form
    378.75/926.06 = 926.06/x
  3. Step 3: Cross multiply
    378.75x = 926.06 × 926.06
  4. Step 4: Simplify right side
    378.75x = 857,591.75
  5. Step 5: Solve for x
    x = 857,591.75/378.75
  6. Step 6: Final answer
    x = 2,264.27

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Why These Related Problems?

These problems maintain the same ratio (2.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.